Home / 10,016.60-15,011.75-7,371.72

Finding the Fourth Proportional to 10,016.60, 15,011.75 and 7,371.72

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Solution

The fourth proportional to 10,016.60, 15,011.75 and 7,371.72 is: 11,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,016.60 : 15,011.75 = 7,371.72 : x
  2. Step 2: Convert to fraction form
    10,016.60/15,011.75 = 7,371.72/x
  3. Step 3: Cross multiply
    10,016.60x = 15,011.75 × 7,371.72
  4. Step 4: Simplify right side
    10,016.60x = 110,662,305.79
  5. Step 5: Solve for x
    x = 110,662,305.79/10,016.60
  6. Step 6: Final answer
    x = 11,047.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.